Abstract : Barium titanate is important as a nonlinear optical material primarily because of its large photorefractive gain. This gain is large enough to give rise to self-pumped phase conjugation at low optical power. Several studies have been conducted on enhancing the gain of the crystal through controlled doping and annealing. These dopants have, till now, been confined to transition metals such as iron, chromium, iron + nickel and cobalt. In this talk, we report preliminary results of the self-pumped phase conjugate reflectivity in cerium doped barium titanate.